And NCDC USES the entire 20th century.
NCD C用得失整个20世纪的气候数据。
Both NCDC and NASA use data that goes back to 1880.
NCDC和NASA使用的数据可以追溯到1880年。
But there is a lot of climate data the NCDC and other public databases don't have.
但在美国国家气候资料中心和其他公用数据库中，还是缺乏大量的气候数据。
The NCDC has records for thousands of weather stations, some dating back more than a century.
美国国家气候资料中心存有数万气象站的记录数据，一些数据能追溯到一百多年以前。
NCDC also reports that the North American snow cover extent for the month was the smallest on record for April.
NCDC还报告说，当月北美积雪程度是有记录以来四月份最小的。
The NCDC believes, on the basis of preliminary data and in a way that Mr Watts disputes, that the evidence for poor siting does not affect the overall trends in the surface record.
美国国家气候资料中心认为，根据原始数据以及从瓦特先生的争论方式上看，证明选址不佳的证据并不影响全部地表记录的走向。
The NCDC believes, on the basis of preliminary data and in a way that Mr Watts disputes, that the evidence for poor siting does not affect the overall trends in the surface record.
美国国家气候资料中心认为，根据原始数据以及从瓦特先生的争论方式上看，证明选址不佳的证据并不影响全部地表记录的走向。
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